<template>
    <div>
        <!-- 面包屑导航区域 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>商品管理</el-breadcrumb-item>
            <el-breadcrumb-item>商品列表</el-breadcrumb-item>
        </el-breadcrumb>

        <!-- 卡片视图 -->
        <el-card>
            <el-row>
                <el-col :span="8">
                    <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getGoodsList">
                        <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="goAddPage">添加商品</el-button>
                </el-col>
            </el-row>

            <!-- table表格区域 -->
            <el-table :data="goodslist" border stripe>
                <el-table-column type="index"></el-table-column>
                <el-table-column prop="goods_name" label="商品名称"></el-table-column>
                <el-table-column prop="goods_price" label="商品价格(元)" width="95px"></el-table-column>
                <el-table-column prop="goods_weight" label="商品重量" width="95px"></el-table-column>
                <el-table-column label="创建时间" width="155px">
                    <template slot-scope="scope">
                        {{scope.row.add_time | dateFormat}}
                    </template>
                </el-table-column>
                <el-table-column label="操作" width="140px">
                    <template slot-scope="scope">

                        <el-button type="primary" icon="el-icon-edit" size="mini"></el-button>
                        <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeById(scope.row.goods_id)"></el-button>
                    </template>
                </el-table-column>
            </el-table>

            <!-- 分页区域 -->
            <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange" :current-page="queryInfo.pagenum"
                    :page-sizes="[10, 20, 30, 40]"
                    :page-size="queryInfo.pagesize"
                    layout="total, sizes, prev, pager, next, jumper"
                    :total="total" background>
            </el-pagination>
        </el-card>
    </div>
</template>

<script>
    export default {
        name: "List",
        data() {
            return {
                // 查询参数对象
                queryInfo: {
                    query: '',
                    pagenum: 1,
                    pagesize: 10
                },
                // 商品列表
                goodslist: [],
                // 总数据条数
                total: 0,
            }
        },
        methods: {
            // 根据分页获取对应的商品列表
            async getGoodsList() {
                const {data: res} = await this.$http.get('goods', {
                    params: this.queryInfo
                })
                if(res.meta.status !== 200) {
                    return this.$message.error(res.meta.msg)
                }

                // this.$message.success('获取商品列表成功');
                this.goodslist = res.data.goods;
                this.total = res.data.total;
                // console.log(res.data)
            },
            handleSizeChange(newSize) {
                this.queryInfo.pagesize = newSize;
                this.getGoodsList()
            },
            handleCurrentChange(newPage) {
                this.queryInfo.pagenum = newPage;
                this.getGoodsList()
            },
            // 点击删除按钮，删除商品列表
            async removeById(goods_id) {
                const confirmResult = await this.$confirm('此操作将永久删除该商品，是否继续?', '提示', {
                    confirmButtonText: '确定',
                    cancelButtonText: '取消',
                    type: 'warning'
                }).catch(err => {
                    return err
                })

                if(confirmResult !== 'confirm') {
                    return this.$message.info('取消删除')
                }

                const {data: res} = await this.$http.delete(`goods/${goods_id}`)
                if(res.meta.status !== 200) {
                    return this.$message.error(res.meta.msg)
                }
                this.$message.success('删除成功')
                this.getGoodsList()
            },
            goAddPage() {
                this.$router.push('/goods/add')
            }

        },
        created() {
            this.getGoodsList()
        }
    }
</script>

<style scoped>
    .el-col {
        margin-right: 20px;
    }
</style>